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Why Collections.sort uses merge sort instead of quicksort?
...ormance and requires O(n) extra space. In its day (it was written
in 1997 by Joshua Bloch), it was a fine choice, but today but we can
do much better.
Since 2003, Python's list sort has used an algorithm known as timsort
(after Tim Peters, who wrote it). It is a stable, adaptive, iterati...
Rails: Default sort order for a rails model?
...ot actually executed until actual results are needed (lazy evaluation), so 7 scopes could be chained together but only resulting in 1 actual database query, to avoid performance problems from executing 7 separate queries.
You can use a passed in parameter such as a date or a user_id (something that...
jQuery / Javascript - How do I convert a pixel value (20px) to a number value (20)
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edited Feb 28 '14 at 17:38
MrMakeIt
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answered Jun 11 '10 at 15:31
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Convert a python 'type' object to a string
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print type(someObject).__name__
If that doesn't suit you, use this:
print some_instance.__cla...
Sending “User-agent” using Requests library in Python
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edited Sep 5 '17 at 20:25
answered May 15 '12 at 17:58
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Rails “validates_uniqueness_of” Case Sensitivity
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answered Mar 27 '09 at 18:03
Jordan BroughJordan Brough
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Best way to use html5 data attributes with rails content_tag helper?
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stephencelisstephencelis
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Xcode 4 and Core Data: How to enable SQL Debugging
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– Felipe Sabino
Sep 6 '12 at 18:37
is there any way i can log only if it inserts into database not for other case ?
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How to: Define theme (style) item for custom widget
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answered Feb 19 '11 at 17:39
MichaelMichael
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sqlalchemy: how to join several tables by one query?
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edited Apr 8 at 9:57
Ryabchenko Alexander
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